Mixing the perfect solution

What we tried to do in our first attempt is extend the lighting times up to one minute in the full sun or high noon. In developing our own light sensitive emulsion we tried different mixtures until we had (what we thought was) the perfect one. Hopefully this mixture would harden completely at midday, and would not so during sunset. Our goal is to record all differences in light during a full day; every speck of cloud, a slither of mist, sun up and sun down. Hopefully we can obtain all nuances of daylight with our sun catching setup.